文献类型：期刊文献

中文题名：高温下兖州煤焦/CO_2气化反应性

英文题名：CO_2 GASIFICATION REACTIVITY OF YANZHOU COAL CHARS AT ELEVATED TEMPERATURES

作者：顾菁[1];吴诗勇[1];张晓[1];吴幼青[1];高晋生[1]

机构：[1]华东理工大学能源化工系,上海博士生200237

年份：2007

卷号：30

期号：4

起止页码：34

中文期刊名：煤炭转化

外文期刊名：Coal Conversion

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家重点基础研究规划(973)项目(2004CB217704).

语种：中文

中文关键词：等温热重分析;煤;高温气化;反应性

外文关键词：isothermal thermo-gravimetric analysis,coal,high temperature gasification,reactivity

摘要：在常压、温度为950℃～1400℃范围内,以二氧化碳为气化剂,用等温热重法研究了我国兖州煤的高温气化反应性.主要考察了反应温度、热解终温和热解速率对兖州煤焦高温反应性的影响,并把兖州煤焦的高温反应性和神府煤焦的高温反应性作了比较.结果表明:随气化温度的提高,兖州煤焦反应性的总体趋势增强;快速热解焦的反应性优于慢速热解焦;热解温度对兖州煤焦反应性的影响甚微;在低温段,兖州煤焦的反应性比神府煤焦略差,但在高温段,兖州煤焦的反应性与神府煤相近.
The CO2 gasification reactivity of Yanzhou coal chars were investigated by an isothermal thermo-gravimetric analysis at ambient pressure and at temperatures from 950 ℃ to 1 400℃. In this work the effects of gasification temperatures, heating rate and heating temperature on the gasification reactivity of Yanzhou coal chars were studied primarily, and the gasification reactivity of Yanzhou and Shenfu coal chars was compared. The results showed that general gasification reactivity of chars increased with gasification temperature, gasification reactivity of rapid heating chars were higher than that of slow heating chars, and the effect of heating temperature was limited. In addition, the gasification reactivity of Yanzhou coal chars was worse than that of Shenfu coal chars when gasification temperature was lower, and they were similar when gasification temperature was higher.